56855867 has 8 divisors (see below), whose sum is σ = 57613200. Its totient is φ = 56103840.

The previous prime is 56855861. The next prime is 56855893. The reversal of 56855867 is 76855865.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56855867 - 2²⁴ = 40078651 is a prime.

It is a super-2 number, since 2×56855867² = 6465179224643378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56855861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23117 + ... + 25457.

It is an arithmetic number, because the mean of its divisors is an integer number (7201650).

Almost surely, 2^56855867 is an apocalyptic number.

56855867 is a deficient number, since it is larger than the sum of its proper divisors (757333).

56855867 is a wasteful number, since it uses less digits than its factorization.

56855867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653.

The product of its digits is 2016000, while the sum is 50.

The square root of 56855867 is about 7540.2829522505. The cubic root of 56855867 is about 384.5254556918.

The spelling of 56855867 in words is "fifty-six million, eight hundred fifty-five thousand, eight hundred sixty-seven".